Aims. Although absorbable sutures for the repair of acute Achilles tendon rupture (ATR) have been attracting attention, the rationale for their use remains insufficient. This study prospectively compared the outcomes of absorbable and nonabsorbable sutures for the repair of acute ATR. Methods. A total of 40 patients were randomly assigned to either braided absorbable polyglactin suture or braided nonabsorbable polyethylene terephthalate suture groups. ATR was then repaired using the Krackow suture method. At three and six months after surgery, the isokinetic muscle strength of ankle plantar flexion was measured using a computer-based Cybex dynamometer. At six and 12 months after surgery, patient-reported outcomes were measured using the Achilles tendon Total Rupture Score (ATRS), visual analogue scale for pain (VAS pain), and EuroQoL five-dimension health questionnaire (EQ-5D). Results. Overall, 37 patients completed 12 months of follow-up. No difference was observed between the two groups in terms of isokinetic plantar flexion strength, ATRS, VAS pain, or EQ-5D. No re-rupture was observed in either group. Conclusion. The use of absorbable sutures for the repair of acute ATR was not inferior to that of nonabsorbable sutures. This finding suggests that absorbable sutures can be considered for the repair of acute ATRs. Cite this article: Bone Joint J 2022;104-B(8):938–945

Introduction. Skin closure methods are various in total knee arthroplasty (TKA). Subcuticular skin closure techniques, which do not require postoperative stitch removal, are considered to be useful for excellent cosmesis and patients' satisfaction. Basically, subcuticular skin closure provides the tightness and water-tight seal, which leads to loss of postoperative normal physiologic drainage. As a routine wound closure, we performed the subcuticular skin closure with use of absorbable sutures or barbed sutures without staples. According to some previous reports, subcuticular skin closure using barbed sutures resulted in worse clinical outcomes, comparing with conventional skin staples. However, little attention has been paid to the differences between conventional absorbable and barbed sutures in both capsular and subcuticular skin closures. Our purpose was to investigate the efficacy and safety of the barbed suture, comparing to conventional absorbable sutures in TKA. Methods. A total of 81 knees in 75 patients (60 females and 15 males) were enrolled in the current investigation. Mean age was 73 (58–89) years old. All the subjects underwent unilateral or staged bilateral TKA using Balanced Knee System, posterior stabilized design (Ortho Development, Draper, UT). All knees were divided into two groups, as presented in Table 1. In conventional group, capsule was repaired using interrupted number 1 braided absorbable sutures, followed by closure of subdermal layer using a 3-0 monofilament absorbable suture with inverted interrupted knots. Thereafter, subcuticular skin closure was done using 4-0 monofilament absorbable suture, followed by adhesive tape. On the other hand, in barbed suture group, 1-0 and 4-0 unidirectional barbed suture (V-Loc, Covidien, Mansfield, Massachusetts) was used for capsule and subcuticular skin closure, respectively. Drains were removed on postoperative day 2. We evaluated closure time from capsule to skin, range of motion (ROM), Hollander Wound Evaluation Score (HWES: maximum score 6/6), and complications. Postoperative ROM and HWES were evaluated on postoperative day 14. As a statistical analysis, the data was compared between groups using Mann-Whitney U-test and Fisher exact probability test. P-values of < 0.05 were considered as significant. Results. 20 knees were allocated to conventional group and 61 knees were allocated to barbed suture group. Preoperative patients' demographics were seen in Table 2. No significant differences were found between groups preoperatively. In terms of clinical results, surgical closure time was significantly fast in barbed suture group, while postoperative range of motion and HWES were not significantly different between groups. In each group, wound related complication was not found. Discussion. According to previous reports, V-Loc provided worse clinical outcomes in wound related complications. However, in the current investigation, barbed suture was safe in wound cosmesis and effective in surgical closure time, comparing to conventional closure. We considered that barbed suture would be safe and effective as a closure method in TKA

Objective. Carpal tunnel release surgery is a commonly performed procedure for alleviating symptoms of median nerve compression and restoring hand function. With pressure on theatre time these procedures are now commonly performed in a step-down out-patient facility under local anaesthetic. The choice of suture for skin closure in this procedure can impact the quality of wound healing, patient outcomes and the follow-up required however the question of the best type of suture remains unanswered. The purpose of this study was to compare the outcomes of absorbable and non-absorbable sutures using a randomised control trial design. Methods. Eighty patients diagnosed with bilateral carpal tunnel syndrome were enrolled and underwent outpatient carpal tunnel release surgery under local anaesthetic in a staged fashion. Random number generation was used to assign each hand to receive interrupted nylon or Vicryl Rapide sutures. Pre-operative data collection included patient demographics, ASA, inflammatory conditions, smoking status as well as a Boston Carpal Tunnel Questionnaire (BCTQ) for each hand. Patients were followed up at 2 and 6 weeks after each operation and the BCTQ was repeated along with the Patient and Observer Scar Assessment Scale and the VAS score for wound discomfort. This study has approval from the DHB ethics committee, Local Iwi, HDC and ANZ Clinical Trials:ACTRN12623000100695. Results. Statistical analysis assessed patient preference and the scores between the groups. Multi-variate analysis was performed to assess the factors that may be contributing to patient choice. Conclusion. Insights into patient preference and clinical outcomes associated with absorbable sutures and non-absorbable sutures in the setting of out-patient surgery are discussed

Introduction: Olecranon fractures comprise 4–7% of all fractures around the elbow in the pediatric age group. 80% of these fractures can be treated expectantly. Fractures with 2 mm of displacement or more require surgical intervention. The surgical procedure commonly used is ORIF with 2 Kirschner wires and tension band wire as advocated by the AO technique. All open interventions require removal of hardware under anesthesia. We present our experience of five cases treated with percutaneously placed K-wires and absorbable sutures. Patients and Methods: Five patients, 4 boys and one girl, average age 6 8/12 years (range 4½-14¼ years) with displaced fractures of the olecranon were treated with ORIF during the years 2000–2004. In two cases additional injuries were noted [a displaced lateral condyle fracture in one and a dislocated radial head (Monteggia variant) in another patient]. Under general anesthesia, the olecranon is approached through a posterior incision. After reduction, fixation is achieved with two K-wires, which are inserted percutaneously. Additional fixation is obtained with a heavy absorbable suture (Dexon, PDS) which is fashioned in a figure of eight around the protruding pins and through a hole in the proximal ulna. Stability is checked under vision before wound closure. K-wires are trimmed and a plaster cast is fitted with the elbow in flexion. The plaster cast and K-wires are removed 4 weeks post surgery after X-rays confirm that the fracture is healed and range of motion is started. Results: Five patients have been treated with our technique; all fractures were reduced and stable in flexion and extension under vision at the end of surgery. K-wires were removed 4 weeks postoperatively and patients were allowed free range of motion. No immediate complications were noted, none became infected and no loss of fixation was observed. Conclusions: Anatomic reduction and stable fixation can be achieved by the surgical technique presented. The usual complication of hardware irritation and the need for additional surgery to remove K-wires and the metal TBW are avoided by the use of absorbable sutures and protruding K-wires. Functional outcome is excellent on short term follow-up. Larger numbers and prospective follow-up will tell whether this technique can replace the commonly used methods of olecranon fracture fixation in the pediatric age group

Introduction: The choice of whether to use absorbable or non-absorbable suture in the closure of wounds following hand or upper limb surgery is usually surgeon dependent. In our unit both continuous absorbable subcutaneous suture and interrupted non-absorbable suture are utilised. The use of absorbable sutures offers a potential advantage to the patient and clinician in not requiring a clinic appointment for suture removal. The quality and aesthetic appearance of hand and upper limb surgical scars are of great importance to patients. Few studies have compared the aesthetic appearance of scars following the use of absorbable and non-absorbable suture in hand and upper limb surgical wound closure. Method: 50 consecutive patients having undergone day case hand surgery between August 2007 and May 2008 with absorbable suture wound closure were identified along with 50 consecutive patients over the same time period who underwent non-absorbable wound closure. Each was sent a questionnaire comprising a visual analogue scale (VAS) for wound satisfaction, a validated 6 point patient scar assessment tool and the short version of the Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH). Results: 100 patients were contacted by post and 70 responses were received (37 absorbable, 33 non-absorbable). Both groups had undergone a similar spectrum of procedures including carpal tunnel decompression, Dupuytrens fasciectomy, excision of lesions and trigger finger release. Age, sex and QuickDASH scores were not significantly different between groups. Mean VAS was not significantly different between groups (Non-absorbable group 82.4 (95% CI 74.7–90.2) Absorbable group 80.4 (95% CI 71.9–89.0)). No significant difference was found between groups in terms of pain, itching, scar colour, stiffness, thickness or irregularity. Conclusion: No significant difference in aesthetic appearance of scars exists following the closure of hand and upper limb wounds with either absorbable or non-absorbable suture. Either suture material can be used with confidence with respect to aesthetic outcome

Introduction. Joint reconstruction remains a successful and popular surgery with advances in approaches, implants and techniques continually forthcoming. Various methods of skin closure exist to address issues in efficiency, aesthetics, and barrier to infection. While subcuticular skin closure techniques offer an aesthetic advantage to conventional skin stapling, no measurable differences have been reported. Furthermore, newer barbed sutures, such as the V-loc absorbable suture, theoretically distribute tension evenly through the wound and help decrease knot-related complications. To our knowledge, no literature exists on the rate of wound complications in joint arthroplasty with the use of V-loc suture for skin closure. We hypothesize that despite theoretical gains, skin closure with a V-loc (Covidien, Mansfield, MA) absorbable suture should be performed with caution. Methods & Materials. A retrospective chart review was conducted of 278 consecutive primary joint reconstruction cases performed by a single surgeon in 12 months from July 2009 through June 2010. Pre-operative history & physical reports were evaluated for co-morbidities (i.e diabetes mellitus), smoking status and body mass index (BMI). Operative dictations by the attending surgeon provided information on the surgical procedure, use of drain, wound closure technique and type of suture/staple used for skin closure. Skin was closed by the primary surgeon and his chief resident. Wounds were closed via staple gun or subcuticular stitch (3-0 Biosyn vs V-Loc) in a consecutive manner, depending on the surgeon's preference in that period. Post-operative clinic notes were reviewed to determine the occurrence of wound complications, issuance of antibiotic prescriptions, or return to the operating room. The cohort consisted of 106 males and 161 females at an average age of 63 years (range: 18–92). Overall, there were 153 procedures at the knee (including TKA, uni-compartmental arthroplasty, patello-femoral arthroplasty) and 125 procedures at the hip (including THA and hemi-arthroplasty). Results. In review of 278 consecutive primary joint reconstruction cases, there were 17 (6.1%) post-operative wound complications noted, including cellulitis, stitch abscesses, wound dehiscence, and deeper infections requiring OR irrigation and debridement. In 181 cases, staples were used for skin closure; in these cases, seven wound complications were noted (7/181, 3.9%). In 49 cases closed via a subcuticular Biosyn suture there were 4 wound complications noted (4/49, 8.1%). Six wound complications occurred in cases closed with a V-loc suture (6/45, 13.3%). Discussion. Aesthetics and efficiency often are the driving forces of innovation. We present the rate of wound complications in various superficial wound closure methods, including the V-loc, an innovative absorbable barbed suture. Based on our clinical experience, we promote consideration of wound and infectious complications when choosing a method of skin closure in joint reconstruction procedures

Our audit examined the rates of complication in the surgical wounds of patients having surgery for fractured neck of femur, comparing the use of skin clips and an absorbable subcuticular suture. The initial part of the audit compared the commonly used methods of skin closure at our institution, as outlined above. One hundred consecutive patients with fractured necks of femur (NOF) were studied. The closure of the wounds was randomly allocated between skin clips and subcuticular suture. The wounds were monitored for signs of complications, including infection, for the duration of hospital stay. It was found that the use of skin clips carried with it a significantly higher rate of complication (11.1% ) when compared with use of subcuticular absorbable suture (0% ). At this stage, we concluded that the latter method be adopted as departmental policy. A further study was performed one year later to reevaluate the efficacy of the new practice. A further fifty consecutive patients with NOF were studied using the same parameters as before. Our results demonstrated that the rate of complication was clinically and statistically significant. We closed the loop of the audit cycle and concluded that the use of an absorbable subcuticular suture should be the preferred method of closure of hip wounds in NOF surgery

Carpal tunnel decompression is one of the most commonly performed orthopaedic operations. Last year 160 patients attended our department for surgery. There have been reports in the literature of good results and improved patient satisfaction for wound closure with Vicryl Rapide following Dupuytren's surgery. We looked at 200 consecutive patients who underwent carpal tunnel decompression. Wounds were closed using either non-absorbable monofilament sutures (first 97 patients) or interrupted Vicryl Rapide (next 103 patients). We compared the incidence of wound problems in the early post operative period, scar sensitivity and the number of patients requiring a further outpatient appointment because of ongoing problems associated with these issues. There was a higher incidence of early wound problems (p=0.0359) in patients whose wounds were closed with nylon. There was no difference in the rates of scar tenderness (p=1) or in the number of patients requiring further clinic appointments (p=0.356). There are also potential cost savings in using absorbable sutures as they require fewer sundry items at the dressings clinic. In conclusion there were fewer problems associated with wound closure with interrupted Vicryl Rapide sutures than with nylon in patients undergoing carpal tunnel decompression

Isolated rupture of short head of biceps is a rare injury. There have been no published reports of rupture at the musculotendinous junction. We report two cases of complete rupture of the musculotendinous junction of the short head of biceps in young males both occurring during water skiing. Two males sustained water skiing injuries where the handle was forced against the flexor region of the arm. Whilst trying to adduct and flex the extended arm, they both sustained complete musculotendinous ruptured of their short head of biceps. Both underwent pre-operative magnetic resonance imaging and one underwent isokinetic strength testing of elbow flexion and supination. Surgical repair was performed using absorbable sutures. One patient had the short head muscle belly flipped distally to lie in a subcutaneous plane in front of the elbow. Post-operative management included cast immobilisation for three weeks then gentle range of motion exercises. Both patients recovered their full range of motion in the arm. There were no complications. Post-operative strength testing was performed and will be presented. This is a unique series of complete musculotendinous rupture of the short head of biceps. The mechanism of injury was resisted adduction and flexion against the towrope handle with the arm in extension. These ruptures occurred in high impact high velocity accidents. Surgical repair lead to an excellent outcome

Purpose of Study. A description of a procedure to stabilize symptomatic complete discoid menisci with medium term results. Methods and Results. Children with mechanical symptoms of lateral meniscal instability were assessed by MRI scan. In those with a lateral discoid meniscus an arthroscopic examination was performed to identify the presence of tears and confirm the radiological diagnosis. No incomplete or Wrisberg variant types were encountered. An antero-lateral arthrotomy was performed. The anterior horn of the meniscus was mobilized and traction sutures inserted. Flexion and extension of the knee whilst traction was applied led to delivery of the anterior horn into the wound. After confirmation of position with image intensifier a groove was fashioned in the anterior aspect of the cartilaginous portion of the proximal tibial epiphysis. Typically three titanium bone anchors with non absorbable sutures were placed in the base of the groove. The anterior horn of the meniscus was drawn into the groove and anchored with sutures. Active range of motion exercises were encouraged but a canvas knee immobilizer was employed whilst walking for the first six weeks. Four boys and three girls underwent meniscopexy performed at a mean age of 9.4 years (range 5.7 to 12.4 years). Follow up was at a mean of 4.9 years. At last follow up no patient reported symptoms of locking or pain. No patient has required revision surgery but one girl had a subsequent meniscopexy procedure on the opposite knee. Five of the children have had Lysholm scores performed at last follow up averaging 93.5 (80 to 100 points). Conclusion. Complete lateral discoid menisci in children can be rendered asymptomatic in the medium term by re-tensioning the anterior horn

This study was carried out to investigate the outcome of rotator cuff repair surgery in 14 centres in th UK in a randomised controlled trial. It also looked at a comparison of a long-acting absorbable suture (Panacyrl) and a non-absorbabable suture (Ethibond). All patients were treated with open repair of their rotator cuff tear with modified Mason-Allen sutures used in 83% of cases. One hundred and fifty-nine patients were included in the analysis. patients had Constant scores carried out pre-operatively, six and 12 months as well as ultrasound real time dynamic scans at eight weeks, six and 12 months. Constant pain scores, total constant scores and re-tear rates were measured. There was a significant improvement in the Constant score after rotator cuff repair surgery. However for large tears, the re-tear rate at six months is approximately 50%. Despite this high retear rate there was still a good benefit from surgery. Is the improvement in those cases with a re-tear a consequence of the sub-acromial decompression (SAD) and what would have been the outcome with an ASD alone?

A seventy-five-year-old female patient presented with pain and deformity of her left leg of three days duration. Hybrid THRA has been done 11 years ago at her left hip for the treatment of osteoarthritis. Massive osteolysis and pathologic fracture were observed on plain radiograph (Fig. 1). Revision THRA using an allograft prosthesis composite (APC) was planned for solution of extensive bone loss of the proximal femur. Surgical exposure was performed through extended trochanteric osteotomy with the patient supine. Step-cut osteotomy was done at the remained proximal part of host femur to make match with the distal part of APC. Meticulous removal of granulation tissues and remaining cement was done. As Acetabular cup was stable, 60 mm sized high-walled polyethylene liner was exchanged. Calcar reconstruction prosthesis was cemented into a proximal femoral allograft measuring 15 cm and cement at the vicinity of the step-cut osteotomy was removed for later bony union at interface. After solid fixation of APC with cement, the distal half of APC was cemented with the host femur. Step-cut osteotomy was wired and autogenous bone grafts from the greater trochanter were added at the interface. Leg length and stability were rechecked using a standard necked 28 mm metal head and reduction was done stably. Greater trochanter was fixed over the trimmed proximal allograft with multiple wiring and paper-thin host femur was enveloped around the femoral allograft using absorbable sutures. Following insertion of the closed suction drainage drains, closure was done as routine fashion and healing of the wound was uneventful (Fig. 2). An abduction brace was applied post operatively for a period of four weeks. Crutch walking with partial weight bearing was started at four weeks and crutch protection was applied for a period of six months. Incorporation of allograft with the host bone was observed on two-year follow-up radiographs. At seven-year follow-up, the patient walks well with a mild limp, and Harris score is 90. We report on a seven-year follow-up case of revision THRA with APC with references (Fig. 3)

The December 2022 Foot & Ankle Roundup³⁶⁰ looks at: Evans calcaneal osteotomy and multiplanar correction in flat foot deformity; Inflammatory biomarkers in tibialis posterior tendon dysfunction; Takedown of ankle fusions and conversion to total ankle arthroplasty; Surgical incision closure with three different materials; Absorbable sutures are not inferior to nonabsorbable sutures for tendo Achilles repair; Zadek’s osteotomy is a reliable technique for treating Haglund’s syndrome; How to best assess patient limitations after acute Achilles tendon injury; Advances in the management of infected nonunion of the foot and ankle.

Chronic ruptures of the tendo-achilles in young individuals pose difficult therapeutic problems. Surgical repair Is necessary to achieve optimum functional results. We present our results using a modified Bosworth technique using a ‘turn-down’ strip of gastrosoleus aponeurosis. Materials and methods: 11 patients (9 Males:2 Females) Age range: 23–51 (average 36) Time since rupture: 9–20 weeks (average 13). All had pain, weak or absent push-off and restricted ADL. Technique: Posterior midline incision – rupture exposed, ends debrided – 1” strip of gastrosoleus aponeurosis about 2–3” long – detatched proximally ‘turned down’ with fascial surface anterior. This modification was to avoid tissue bulge at proximal end of incision. The fascial strip was approximated with delayed absorbable sutures. The plantaris was used to supplement the repair when possible. Cast-bracing for 9 weeks. FU – 12–42 months, minimum 12. All patients independently assessed at one year. AOFAS hindfoot scores – Preop and 1 year postop. Results: AOFAS scores: Preop: 49 (40–61) Postop: 82(70–94) 2 minor wound problems-no surgical intervention required. Push-off strength returned to about 70–80% in all patients. 7/11 patients returned to preop recreational activities. We conclude that this is a safe and predictable repair technique in this group of patients. It is technically easy, restores tendon length and provides excellent functional improvement

Compromised patellar bone stock poses significant the chnical problems in primary and revision knee arthroplasty. In these situations, traditional approaches have included: non resurfacing, patellectomy, patellar bone grafting, ‘Gull-Wing’ osteotomy. A new material (Trabecular Metal) fabricated using a tantalum metal and vapor deposition techhnique that create a metallic strut configuration with 80%porosity, and physical and mechanical properties similar to bone has been introduced. The authors studied the short-term results following patellar resurfacing using trabecular metal patella in primary and revision total knee arhroplasty (TKA). Nine patients undergoing primary (2 cases) or revision (7 cases) TKA with the use of a trabecular metal patella were evaluated at a mean of 16 months follow-up. All patients had marked patellar bone deficiency precluding resurfacing with a standard cemented patellar button. The all polyethylene patela was cemented into the trabecular metal base and the remaining patella bone stock; additional fixation was provided by # 2 non absorbable sutures through the peripheral holes on the metal shell. Revision TKA may be complicated by severe patellar bone loss that preclude implantantion of a standard cemented patellar component. Several options including patellectomy, non resurfacing and osteotomy or grafting of remaining bony shell have been proposed. It is rare in primary knee arthroplasty that the patella has been so eroded that resurfacing is not feasible. Trabecular metall patella may be indicate in the complex revision or even primary knee arthroplasty in which all that remains of the patella is a thin shell of anterior cortical. The short-term results of patellar resurfacing with trabecular metal have demonstrated favorable results

Introduction: Patients with neglected patellar tendon ruptures present with weakness, instability, extensor lag and sometimes pain. Reports in the literature describe autograft and allograft reconstruction and sometimes quadricepsplasty. Post-operative splintage with a cast or brace is often recommended. Aim: To describe a simple effective method of surgical treatment for neglected ruptures of the patellar tendon. Method: Patients who were included all had neglected patellar tendon ruptures that were initially misdiagnosed or had failed other treatment. Through a midline incision scar tissue was excised and two or three strong cerclage wires were used to approximate the patella and ruptured tendon. The wires were passed from the quadriceps tendon to the absorbable sutures in the tibia. No quadricepsplasty was necessary. Following the surgery immediate mobilisation was initiated without the use of a brace. The wires were removed six months following surgery. Results: Four patients were treated at an average of 29 months following the initial injury. The average follow- up was 26 months (range: 13 to 42 months). The average range of motion was 110 degrees. All patients had improved quadriceps strength, no extensor lag and had returned to work. Conclusion: We have described a simple effective method of treatment without the use of autograft or allograft. The strong cerclage wires allowed immediate mobilisation

One of the recently introduced anchors is the absorbable suture anchor BIOKNOTLESS-RC, a press-fit anchor whose special feature is the knotless reconstruction of the ruptured rotator cuff. We compared the new knotless anchor BIOKNOTLESS-RC with established anchors. The absorbable pressfit anchor BIOKNOTLESS-RC (DePuyMitek, Raynham, MA, USA), the titanium screw anchor SUPER-REVO 5mm and the tilting anchor ULTRASORB (both ConmedLinvatec, Largo, FL, USA) were tested 12 times in the greater tuberosity of human cadaveric humeri (mean age: 74 years). They were inserted according to the manufacturers instructions with the supplied suture material. An incremental cyclic loading was performed, starting with 75N. Until failure the tensile load was increased by 25N after every 50 cycles. The ultimate failure loads, the anchor displacements and the modes of failure were recorded. The anchor displacement of the BIOKNOTLESS-RC (15.3mm) after the first cycle with 75N was significantly higher than with the two others (SUPER-REVO 2.1mm, ULTRASORB: 2.7mm). The ultimate failure loads of the tested anchors were comparable: BIOKNOTLESS-RC 150N, SUPER-REVO 150N, ULTRASORB 151N (p> 0,05). Rupture of the suture material at the eyelet occurred more frequently with the SUPER-REVO. BIOKNOTLESS-RC and ULTRASORB showed a tendency towards anchor pullout. Our results do not confirm the higher pullout strength of metal anchors, which was found in other studies. Knotless anchors facilitate surgery by eliminating the technically challenging step of arthroscopic knot tying. The disadvantage of the BIOKNOTLESS-RC is its unsatisfactory primary stability. Its initial displacement of a mean of 15.3 mm is clinically significant and jeopardizes the rotator cuff repair. Because of the high initial displacement and the possible gap formation between tendon and bone, the use of the BIOKNOTLESS-RC in a zone of minor tension, for instance as a second-row anchor in double row technique only is recommend

Absorbable suture anchors have become more and more important in rotator cuff surgery due to their easy revisability. In osteoporotic bone however they are thought to be of minor primary stability. Purpose of the present study was to compare different absorbable and non-absorbable suture anchors in their pullout strength depending on bone density. The absorbable screw-anchor SPIRALOK5mm (DePuyMitek, Raynham, MA, USA), the titanium screw-anchor SUPER-REVO5mm and the tilting-anchor ULTRASORB (both ConmedLinvatec, Largo, FL, USA) were tested, each anchor representing a different material and design. On the basis of bone density measurement by CT-scans a healthy (mean-age. 42 years) and a osteopenic (mean-age: 74 years) group of cadaveric human humeri were formed. Each anchor was inserted in the greater tuberosity six times. They were inserted according to the manufacturers instructions with the supplied suture material. An incremental cyclic loading was performed, starting with 75N. Until failure the tensile load was increased by 25N after every 50 cycles. The ultimate failure loads, the anchor displacements and the modes of failure were recorded. In the non-osteopenic bone group, the absorbable SPIRALOK achieved a significantly better pullout strength (mean: 274N) than the titanium screw-anchor SUPER-REVO (mean: 188N) and the tilting-anchor ULTRASORB (mean: 192N). In the osteopenic bone group no significant difference in the pullout strength was found. The failure mechanisms, such as anchor pullout, rupture at eyelet, suture breakage and breakage of eyelet, varied between the anchors. In the osteopenic group the number of anchor pullouts clearly increased. The present study demonstrates that absorbable suture anchors do not have lower pullout strengths than metal anchors. Depending on their design they can even outmatch metal anchor systems. The results of our study suggest that the anchor design has a crucial influence on primary stability, whereas the anchor material is less important

Introduction. Sternoclavicular dislocations are well-known adult injuries. The same traumatism causes growth-plate fracture of the medial clavicle in children and young adults. At this location, the emergence of the secondary ossification center and its bony fusion are late. We report the results of 20 cases hospitalized in the Toulouse University Hospital Center that were treated surgically. Materials & Methods. 20 patients were treated between 1993 and 2007, 17 boys and 3 girls, 16 years old (6–20). The traumatism was always violent (rugby 75%). Two physeal fractures were anteriorly displaced, and 18 posteriorly. The follow-up is 64 month (8–174). Clinical, radiographic and therapeutic characteristics were assessed. The long-term results were analysed with: an algo-functional scale (Oxford shoulder score), the subjective Constant score, a functional disability scale (Shoulder simple test), a quality of life scale (DASH), and global indicators (SANE and global satisfaction). Results. all the patients were symptomatic before surgery: pains, oedema and partial functional impotence. Only 2 dysphagia, 1 dyspnea and 1 venous circulation alteration were observed. The first clinical and radiological examination, before CT scan, didn't diagnose the injury in 8 cases. The CT scan were realized for all the patients: it diagnosed the physeal fracture and showed 4 cases of vascular or respiratory compressions. There were 5 attempts of closed reduction, without success: all the patients were surgically-treated. The open reduction were completed by pinning (12 cases) or cerclage with absorbable suture (3 cases). Per-operatory findings lead to realize costo-clavicular repair plasties with the sub-clavicular muscle (3 cases) and/or capsular-ligamentous-perosteal selective plasties (13 cases). Two cases of broken Kirschner wires were noticed, without migration. Functional outcomes are largely good or excellent: STT 11,74/12 (10–12)–OSS 12,95/60 (12–19)–DASH 2,07/100 (0–17,6)–SANE 93,16% (60–100). Discussion and Conclusion. we present the largest case series in the literature. CT scanner is the essential element of the diagnostic process and may allow the distinction between true sterno-clavicular dislocation and displaced physeal fractures. This distinction is difficult at younger ages and is facilitated by the progression of ossification. Very good results were obtained, but classical pitfalls of treatment were found: instability after closed reduction, broken K-wires, recurrent anterior instability, inesthetic scars